Computer assisted medical record retrieval system.

Abstract

A medical record retrieval system for access to patients' records has been developed as the first step toward constructing a medical record data base. Since retrieval is a logical process, a logical system was used to describe the retrieval conditions. For access to a patient set having a number of medical data of interest, the patients concerned are taken as one set for each data item. and a logical computation is carried out between several selected sets to obtain the required set. The retrieval conditions can be designated in two categories, admission and history, thus enabling quite flexible retrieval condition to be described. Since retrieval is one-line, the major file key was introduced to reduce response time and file access frequency.